requireJS(['constant' , 'site', 'handlebars' , 'ue_upload'] , function ( Constant , site ,Handlebars , ue_upload ) {

    //注册handlebars
    Constant.initHandlebars(Handlebars);
    //表单验证同时阻止程序继续运行

    var oss = {
        url:'',
        accessId:'',
        host :'',
        policyBase64 :'',
        signature :'',
        callback :'',
        filename :'',
        key : '',
        expire : 0,
        g_object_name : '',
        g_object_name_type : '',
        now : timestamp = Date.parse(new Date()) / 1000
    }

    var url = {
        getSignature:"manager/getSignature.do"
    }


    function getSignature(){
        site.send({

            url:url.getSignature,
            //async:false,
            callback:function(data){
                data = JSON.parse(data)
                if(data.type == 1){
                    var content = data.content;
                    oss.host = content.host;
                    oss.policyBase64 = content.policy;
                    oss.accessId = content.accessId;
                    oss.signature = content.signature;
                    oss.expire = content.expire;
                    oss.callback = content.callback;
                    oss.key = content.dir;
                }
            }
        })
    }

    function check_object_radio() {
        var tt = document.getElementsByName('myradio');
        for (var i = 0; i < tt.length ; i++ )
        {
            if(tt[i].checked)
            {
                g_object_name_type = tt[i].value;
                break;
            }
        }
    }

    function get_signature()
    {
        //可以判断当前expire是否超过了当前时间,如果超过了当前时间,就重新取一下.3s 做为缓冲
        now = timestamp = Date.parse(new Date()) / 1000;
        if (oss.expire < now + 3)
        {
            getSignature();
            return true;
        }
        return false;
    };

    function random_string(len) {
        len = len || 32;
        var chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';
        var maxPos = chars.length;
        var pwd = '';
        for (i = 0; i < len; i++) {
            pwd += chars.charAt(Math.floor(Math.random() * maxPos));
        }
        return pwd;
    }

    function get_suffix(filename) {
        pos = filename.lastIndexOf('.')
        suffix = ''
        if (pos != -1) {
            suffix = filename.substring(pos)
        }
        return suffix;
    }

    function calculate_object_name(filename)
    {
        if (g_object_name_type == 'local_name')
        {
            g_object_name += "${filename}"
        }
        else if (g_object_name_type == 'random_name')
        {
            suffix = get_suffix(filename)
            g_object_name = key + random_string(10) + suffix
        }
        return ''
    }

    function get_uploaded_object_name(filename)
    {
        if (g_object_name_type == 'local_name')
        {
            tmp_name = g_object_name
            tmp_name = tmp_name.replace("${filename}", filename);
            return tmp_name
        }
        else if(g_object_name_type == 'random_name')
        {
            return g_object_name
        }
    }

    function set_upload_param(up, filename, ret)
    {
        if (ret == false)
        {
            ret = get_signature()
        }
        g_object_name = oss.key;
        if (filename != '') { suffix = get_suffix(filename)
            calculate_object_name(filename)
        }
        new_multipart_params = {
            'key' : g_object_name,
            'policy': oss.policyBase64,
            'OSSAccessKeyId': oss.accessId,
            'success_action_status' : '200', //让服务端返回200,不然，默认会返回204
            'callback' : oss.callback,
            'signature': oss.signature,
        };

        up.setOption({
            'url': oss.host,
            'multipart_params': new_multipart_params
        });

        up.start();
    }

    var uploader = new plupload.Uploader({
        runtimes : 'html5,flash,silverlight,html4',
        browse_button : 'selectfiles',
        multi_selection: true,
        container: document.getElementById('container'),
        flash_swf_url : 'lib/plupload-2.1.2/js/Moxie.swf',
        silverlight_xap_url : 'lib/plupload-2.1.2/js/Moxie.xap',
        url : 'http://oss.aliyuncs.com',

        filters: {
            mime_types : [ //只允许上传图片和zip文件
                { title : "Image files", extensions : "jpg,gif,png,bmp" },
                { title : "Text files", extensions : "txt,java" },
                { title : "Zip files", extensions : "zip,rar" }
            ],
            max_file_size : '50mb', //最大只能上传10mb的文件
            prevent_duplicates : false //不允许选取重复文件
        },

        init: {
            PostInit: function() {
                document.getElementById('ossfile').innerHTML = '';
                document.getElementById('postfiles').onclick = function() {
                    set_upload_param(uploader, '', false);
                    return false;
                };
            },

            FilesAdded: function(up, files) {
                plupload.each(files, function(file) {
                    document.getElementById('ossfile').innerHTML += '<div id="' + file.id + '">' + file.name + ' (' + plupload.formatSize(file.size) + ')<b></b>'
                        +'<div class="progress"><div class="progress-bar" style="width: 0%"></div></div>'
                        +'</div>';
                });
            },

            BeforeUpload: function(up, file) {
                check_object_radio();
                set_upload_param(up, file.name, true);
            },

            UploadProgress: function(up, file) {
                var d = document.getElementById(file.id);
                d.getElementsByTagName('b')[0].innerHTML = '<span>' + file.percent + "%</span>";
                var prog = d.getElementsByTagName('div')[0];
                var progBar = prog.getElementsByTagName('div')[0]
                progBar.style.width= 2*file.percent+'px';
                progBar.setAttribute('aria-valuenow', file.percent);
            },

            FileUploaded: function(up, file, info) {
                if (info.status == 200)
                {
                    document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = 'upload to oss success, object name:' + get_uploaded_object_name(file.name) + ' 回调服务器返回的内容是:' + info.response;
                }
                else if (info.status == 203)
                {
                    document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = '上传到OSS成功，但是oss访问用户设置的上传回调服务器失败，失败原因是:' + info.response;
                }
                else
                {
                    document.getElementById(file.id).getElementsByTagName('b')[0].innerHTML = info.response;
                }
            },

            Error: function(up, err) {
                if (err.code == -600) {
                    document.getElementById('console').appendChild(document.createTextNode("\n选择的文件太大了,可以根据应用情况，在upload.js 设置一下上传的最大大小"));
                }
                else if (err.code == -601) {
                    document.getElementById('console').appendChild(document.createTextNode("\n选择的文件后缀不对,可以根据应用情况，在upload.js进行设置可允许的上传文件类型"));
                }
                else if (err.code == -602) {
                    document.getElementById('console').appendChild(document.createTextNode("\n这个文件已经上传过一遍了"));
                }
                else
                {
                    document.getElementById('console').appendChild(document.createTextNode("\nError xml:" + err.response));
                }
            }
        }
    });

    uploader.init();

})







